High Temperature FeB-type Phases in the Systems Ta-{Ti,Zr,Hf}-B
- Author(s)
- Fainan Failamani, Klaus Göschl, Gabriel R. Reisinger, C. A. Nunes, G. C. Coelho, A. J. S. Machado, L. E. Correa, J.C.P. dos Santos, Gerald Giester, Peter Franz Rogl
- Abstract
Novel FeB-type phases have been evaluated in the systems Ta-{Ti,Zr,Hf}-B either from as cast or arc treated samples by x-ray powder and single crystal diffraction as well as electron probe microanalysis. In each of the three systems the formation of the FeB-type phase suggests a high temperature stabilization of a binary group IV metal monoboride with FeB-type. This holds true for Ti and Hf, while for Zr the single crystal study of (Ta,Zr)B proves that it is a true ternary phase, as no stable monoboride exists in the binary Zr-B system. EPMA analyses reveal that the FeB-type phases Ta{Ti,Zr,Hf}B are formed by substitution of Ta in TaB by rather small amounts of group IV elements (~3 at.% of Zr, ~7 at.% Hf, and ~10 at.% Ti).
- Organisation(s)
- Department of Materials Chemistry, Department of Functional Materials and Catalysis, Department of Mineralogy and Crystallography
- External organisation(s)
- Instituto Oceanográfico
- Journal
- Journal of Phase Equilibria and Diffusion
- Volume
- 36
- Pages
- 620-631
- No. of pages
- 12
- ISSN
- 1547-7037
- DOI
- https://doi.org/10.1007/s11669-015-0418-y
- Publication date
- 10-2015
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 104017 Physical chemistry, 104011 Materials chemistry, 105113 Crystallography, 104024 X-ray structural analysis
- Keywords
- ASJC Scopus subject areas
- Condensed Matter Physics, Metals and Alloys, Materials Chemistry
- Portal url
- https://ucrisportal.univie.ac.at/en/publications/high-temperature-febtype-phases-in-the-systems-tatizrhfb(619759ae-b462-4e9c-b67c-22c67023c58b).html